Altima Hybrid won't turn on after ECM reflash, Any Nissan experts here?
I had two Altima Hybrids in the shop. A red one needed a Hybrid battery, a white one was really messed up. I "borrowed" the ECM from red one, trying to eliminate the ECM as the problem in the white car. DIdn't help, that's a different story.
I put the "was good before I borrowed it" ECM back into Red car with new Hybrid battery, car will not ready up.
I downloaded NERS and updated the firmware in the ECM, made sure the VIN was correct, but car won't turn on. If I put the smartkey in the slot the dash lights come on when I press power, but it will not READY. Is there something I have to do with the immobilzer/key or Hybrid ECU to get this car back on track? there is voltage at the injectors so I don't really think it is an injector problem even though the DTCs are saying so.
Is there an immobilizer/key light on? Have you scanned the entire vehicle for faults?
Only the injector codes and they wont clear? If the dash only comes on with the key in the slot sounds like a power moding/smart key issue. Brake switch and a dead FOB battery? Did you update the ECM with it in the red car? Did the white car take out the ECM?
Are the brake lights coming on, you could have a faulty brake light switch
I checked all the basics, ie. Fob battery is new, brake lights come on when brake pedal pressed, 12V hooked up to charger. Other codes are P0A0F engine failed to start (doesn't even try to turn) and a few ABS codes but those shouldn't stop car from going READY.
I'm not seeing a security light on the cluster at all. The remote buttons do nothing. It's almost as if the Intellikey system went completely stupid.
Man we very rarely see one of these car and you are lucky enough to have 2 in the shop.
I think I would relearn the keys 1st, dont know what you are using for a scanner but the C3+ has a place in the immobilizer section for after ecm replacement
The codes are really strange, might just want to look and see why it setting the injector codes. bad wiring, ground shome thing odd
Any time an ECM is swapped from another vehicle and the key is turned on.. The security system will throw a difference of key code. if the key is cycled 3 times, will lock the vehicle out. You should be able to read BCM codes with only the hazards on. See what is stored in BCM. If there are no codes in NATS or BCM, and the vehicle will not turn on. Have you checked the service plug for the Hybrid battery? if not locked down properly it could also cause issues. what was the original ECM part number before programming ? and what is it now ?
Hi Steven, I'm out of the shop now so cannot confirm ECM part numbers but I did call the dealer for the BEFORE number and purchased the AFTER accordingly. The orange interlock was seated properly (we work mostly on Toyota Hybrids, they use the same plug so am familiar with that)
Do you know more about the 3 key cycle bricking the car? Is there a way to undo it or start over? None of the NERS documentation I read said anything about this happening.
The 3 key cycle is set up on all Nissan's with NATS. if it sees a key not programmed to the vehicle and it is turned on or attempted to start 3 times it will put the vehicle into lock mode. The ID verification between the BCM and ECM fails.
The keys would need to be re-registered to the vehicle. You should be able to read codes in BCM with the hazards on. This is how the vehicle is communicated with in case of lost keys.. etc..
BCM performs the ID verification with hybrid vehicle control ECU that allows the hybrid system to start. Start the hybrid system if the ID is OK. hybrid vehicle control ECU prevents the hybrid system from starting if the ID is not registered. BCM starts the communication with hybrid vehicle control ECU if ignition switch is turned ON.
But to be safe. Let's see what is stored in the BCM first to rule out any other fault.
I think you will only find lock-mode in cars that use a metal key and ignition cyl, I dont recall see it on a i-key push button start car.
I did check for his Altima and there was no code listed for lock mode.
While I was looking in the NATS section of ASIST they is a ton of info and charts showing what needs to happen for that car to go to ready mode
I agree with seeing what other fault codes are in the system but some how I think he will find his answer in the injector codes. Just can not see the car getting ready to start with the injector codes
I'm back from vacation, here's more details. VIN verified with NERS is correct in ECM. ECM File loaded is 23710-JA80E, should be correct as far as I can tell. Still have engine won't start and injector codes. P1195, P0204 etc yet engine does not even attempt to crank.
Seems to be an issue with Intellikey pairing, power button does nothing unless a key in slot, but ANY Nissan Intellikey in the slot will allow power button to partially respond so it's like the formerly working key is not programmed. Car will not go ready, no security light activity at all on dash.
BCM has code B2014, "Inactive communication between steering control unit and BCM" and "U1000 Can communications circuit". Do the Hybrid Altimas even have a steering lock control unit? If there's any truth to the "3 tries to start then car gets bricked" how can this be reset?
I don't have any version of Consult III. Can an Intellikey be paired / reset using any other tool?
Anybody in Colorado have a Consult III Plus I can borrow? :)
Yes, your vehicle is equipped with a steering lock unit.There are two bulletins to be aware of for this vehicle.. NTB10-053 applies to your concern. Is there a yellow key light lit on the cluster?. The other bulletin is NTB10-139. The steering lock units are a very common failure on this vehicle and the warranty was expanded to 999,999. There was a year time frame, But i'm sure it is still covered. When you enter the vehicle.. the BCM starts talking to the steering lock unit. I will attach both bulletins. Hope this helps.
I would think that with those injector codes. The vehicle would not go into ready mode because the hybrid module is seeing the Engine controller failure. Something has more than likely become corrupt due to plugging it into the other vehicle. If reprogramming didn't work you may have to replace the ECM